diff --git a/README.md b/README.md
index e85ea30..46d3d3b 100644
--- a/README.md
+++ b/README.md
@@ -1,2 +1,4 @@
 # protobuf-c
 
+Protobuf-c is a C implementation of the Google Protocol Buffers data serialization format. It includes libprotobuf-c, a pure C library that implements protobuf encoding and decoding, and protoc-c, a code generator that converts Protocol Buffer .proto files to C descriptor code, based on the original protoc. protobuf-c formerly included an RPC implementation; that code has been split out into the protobuf-c-rpc project.
+
diff --git a/protobuf-c.spec b/protobuf-c.spec
new file mode 100644
index 0000000..4201d9e
--- /dev/null
+++ b/protobuf-c.spec
@@ -0,0 +1,84 @@
+Name:          protobuf-c
+Version:       1.4.0
+Release:       1mamba
+Summary:       A C implementation of the Google Protocol Buffers data serialization format
+Group:         System/Libraries
+Vendor:        openmamba
+Distribution:  openmamba
+Packager:      Silvan Calarco <silvan.calarco@mambasoft.it>
+URL:           https://github.com/protobuf-c
+Source:        https://github.com/protobuf-c/protobuf-c.git/v%{version}/protobuf-c-%{version}.tar.bz2
+License:       BSD
+## AUTOBUILDREQ-BEGIN
+BuildRequires: glibc-devel
+BuildRequires: libgcc
+BuildRequires: libprotobuf-devel
+BuildRequires: libstdc++6-devel
+BuildRequires: libz-devel
+## AUTOBUILDREQ-END
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+
+%description
+Protobuf-c is a C implementation of the Google Protocol Buffers data serialization format. It includes libprotobuf-c, a pure C library that implements protobuf encoding and decoding, and protoc-c, a code generator that converts Protocol Buffer .proto files to C descriptor code, based on the original protoc. protobuf-c formerly included an RPC implementation; that code has been split out into the protobuf-c-rpc project.
+
+%package -n lib%{name}
+Group:         System/Libraries
+Summary:       A C implementation of the Google Protocol Buffers data serialization format
+
+%description -n lib%{name}
+Protobuf-c is a C implementation of the Google Protocol Buffers data serialization format. It includes libprotobuf-c, a pure C library that implements protobuf encoding and decoding, and protoc-c, a code generator that converts Protocol Buffer .proto files to C descriptor code, based on the original protoc. protobuf-c formerly included an RPC implementation; that code has been split out into the protobuf-c-rpc project.
+This package contains shared libraries for %{name}.
+
+%package -n lib%{name}-devel
+Group:         Development/Libraries
+Summary:       Development files for %{name}
+Requires:      lib%{name} = %{?epoch:%epoch:}%{version}-%{release}
+Requires:      pkg-config
+
+%description -n lib%{name}-devel
+This package contains libraries and header files for developing applications that use %{name}.
+
+
+%debug_package
+
+%prep
+%setup -q
+./autogen.sh
+
+%build
+%configure
+%make
+
+%install
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+%makeinstall
+
+%clean
+[ "%{buildroot}" != / ] && rm -rf "%{buildroot}"
+
+%post -n lib%{name} -p /sbin/ldconfig
+%postun -n lib%{name} -p /sbin/ldconfig
+
+%files -n lib%{name}
+%defattr(-,root,root)
+%{_libdir}/libprotobuf-c.so.*
+%doc LICENSE
+
+%files -n lib%{name}-devel
+%defattr(-,root,root)
+%{_bindir}/protoc-c
+%{_bindir}/protoc-gen-c
+%dir %{_includedir}/google/protobuf-c
+%{_includedir}/google/protobuf-c/protobuf-c.h
+%dir %{_includedir}/protobuf-c
+%{_includedir}/protobuf-c/protobuf-c.h
+%{_includedir}/protobuf-c/protobuf-c.proto
+%{_libdir}/libprotobuf-c.a
+%{_libdir}/libprotobuf-c.la
+%{_libdir}/libprotobuf-c.so
+%{_libdir}/pkgconfig/libprotobuf-c.pc
+%doc ChangeLog README.md TODO
+
+%changelog
+* Thu Jun 24 2021 Silvan Calarco <silvan.calarco@mambasoft.it> 1.4.0-1mamba
+- package created using the webbuild interface